Calculates the functional complementarity for the rows of a web

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Description

A community-level measure of ecological niche complementarity measured as the total branch length of a functional dendrogram based on qualitative differences in visitor assemblages between plants.

Usage

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fc(web, dist="euclidean", method="average", weighted=TRUE)

Arguments

web

A bipartite interaction web, i.e.~a matrix with higher (cols) and lower (rows) trophic levels.

dist

A distance accepted by the function dist.

method

The linkage method to be used by hclust. Any option accepted by hclust is allowed; defaults to "average".

weighted

Option to analyse the web as binary or as weighted network. Default is weighted=TRUE, but analysis presented in Devoto et al. (2012) uses weighted=FALSE.

Details

fc measures community-level ecological niche complementarity as the total branch length of a functional dendrogram based on qualitative differences in visitor assemblages between plants. For details see Devoto et al. (2012).

Value

The value of fc, which is not standardised and lies anywhere between 0 and a large number.

Author(s)

Mariano Devoto mdevoto@agro.uba.ar

References

Devoto M., Bailey S., Craze P., and Memmott J. (2012) Understanding and planning ecological restoration of plant-pollinator networks. Ecology Letters 15, 319–328

See Also

networklevel, which uses this function.

Examples

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data(Safariland)
fc(Safariland)    
fc(t(Safariland), dist="canberra", method="complete")

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